Tack-saver for lasting-machines.



E. J. YOUNG.

TAOK SAVER FOR LASTING MACHINES.

APPLIUATION FILED APR.20, 1908.

Patented June 18, 1912.

MZizesaes COLUMBIA PLANOORAPH c0.,wAsmN6TON. h c.

E. J YOUNG.

TACK SAVER FOR LASTING MACHINES.

APPLICATION FILED APILZO, 1908.

Patented June 18, 1912.

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EDWARD J. YOUNG, OF I-IAVERHILL, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TACK-SAVER FOR LASTING-MACHINES.

Specification of Letters Patent.

Patented June 18. 1912.

Application filed April 20, 1908. Serial No. 428,012.

To all whom it may concern:

Be it known that I, EDWARD J. YOUNG, of Havel-hill, county of Essex, State of Massachusetts, have invented an Improvement in Tack-Savers for Lasting-Machines, of which the following is a specification.

This invention relates to tack saving attachments for lasting machines, more es pecially those of the character known as hand method machines, in which the operator holds a shoe to be lasted by hand in position to be acted upon by the tack driving and lasting devices, machines of this general character being disclosed in the U. S. Patents #510,87 3, and #584,741, and my attachment being especially designed to be applied to an improved form of said machine, which is now in general use and which will be hereafter more fully described.

/Vhile machines of this "character are provided with clutch mechanism for starting and stopping the machine, the ordinary operator frequently fails to stop the machine coincidently with the removal of the shoe therefrom, and he can, moreover, perform his work with less effort if he permits the machine to run while he is changing the shoe from one position to another. The result is that a large number of tacks are wasted in the ordinary operation of the machine.

The object of my invention is to provide a simple device which may be readily attached to a lasting machine of the character now in general use, and more particularly hereinafter described, and which is adapted to control the operation of the tack separating and feeding mechanism, so that the feeding of the tacks will be instantly stopped upon the withdrawal of the shoe from the machine, and will be immediately started upon the placing of the shoe in position'to receive the tacks. I accomplish this object by the means shown in the accompanying drawing, in which,

Figure 1 is a side elevation of a port-ion of a lasting machine provided with my invention, only such parts being shown as directly cooperate with my attachment. Fig. 2 is a detail view of the driver cam and the portion of the driver which engages it.

Figs. 3 and 4 are detail plan views and the machine having the main driving shaft I), which is adapted to be continuously rotated by the pulley c. The tack driving 'mechanism comprises a driver cl adapted to reciprocate in the holder 0 and to be lifted against the action of a torsion spring f, by-

means of a cam 9 on the end of the shaft 6, the cam releasing the driver at a certain point, to permit it to be forced downwardly by the spring. The main or tack-carrying slide 71 is mounted in the frame to slide parallel to the shaft 6, and is adapted to be reciprocated by means of the lever 2', which is oscillated by the cam j on the shaft Z). The slide 72. is provided with an inclined projection it, which is adapted to engage a wheel in mounted on a lever 'm, pivoted at a, so that, as the slide is advanced from itsrearmost to its foremost position, it swings out said lever against the action of a spring a. An operating lever 0, having a gear segment 0 at one end and an arm 0- at the other, is also pivoted upon the pivot 12, and a spring as is interposed between the lever m and arm 0 at one side of pivot n. A stop screw y is mounted in lever 0, at the other side of said pivot in position to engage a shoulder m, on lever m, at the same side of said pivot. As the spring 2 acts to return lever m after it has been forced outwardly by the cam projection h, when said lever m is oscillated, it will swing lever 0 in one direction, through the action of spring 50, and return it by engagement with screw y. Said levers m and 0 thus, under normal conditions, oscillate as one lever. A tack raceway 79, which leads from a suitable magazine or source of supply, not shown, is provided, and a tack separator 9, having a separating finger 1 is secured on a reciprocally mounted block at the end of the race-way, said block having a rack a in driving it.

mesh with the segment 0 of lever 0, so that when the lever 0 is oscillated the separator will be reciprocated thereby. In the withdrawn position of the separator the end of its slot 9 is opposite the mouth of the raceway, so that a tack may enter it, and as the separator is advanced its finger 9 passes between this tack and the next tack, preventing the escape of any more tacks until it is again withdrawn, The first tack is carried, as the separator advances, into the tack hole gi at which point it will drop into the tackholder 1" mounted on the front end of the slideh. As the separator is advanced the slide it is retracted so that the latter is in its retracted position when the separator drops the tack therein, The separator is withdrawn as the slide advances from the tackreceiving position of Fig. 3 into the position for driving of Fig. 4, and the driver is released, forcing the tack from the holder and In the forward movement of the slide, the lever m is moved from the full line position of Fig. 3, to the, dotted position thereof in said figure withdrawing the separator, so that the next tack will enter the mouth of the slot 9 thereof. The separator, therefore, closes the raceway at all times, except when it is opened, in the withdrawn position of the separator, to permit one tackto pass into the separator slot.

The machine, as thus far described, forms no part of my invention, and, as the lasting mechanism which is associated therewith practically in no way modifies or cooperates With my attachment, such mechanism is notdescribed, the lasting pincers 8 being merely shown in Fig. 1 to indicate the character of the machine.

According to my invention I provide a lever 1 which is mounted to swing vertically on a pivot 2, on some stationary part of the machine,,as shown, or upon an inclepcndent support. A rod 3 passes through the front end of lever 1 and is secured therein by means of a set screw 4, so that it may be vertically and rotatably adjusted therein, and an arm 3 extends therefrom nearly horizontally and has a friction roll 5 at its end. Aspring 6 is connected to the lever 1 at the opposite side of pivot 2 from the arm 3, and acts normally to hold the end of lever l, to which itis attached, in an elevated position, correspondingly depressing the arm 3. The end portion of lever 1, at

a the same side of the pivot 2 as the spring 6,

is provided with a rod shaped extension 1, on which a finger 7 is adjustably mounted, said finger 7 being adapted to be moved longitudinally and swing vertically on said extension and having a suitable means for clamping it in different positions thereon. Said finger 7 extends at approximately right angles to said lever 1, and is provided with pivot n, when the lever m is thrown out wardly by the slide it, as it advances. The spring is adapted to be compressed sufficiently to permit said lever m to be swung outwardly, to its fullest extent, so that, while the toe 8 is in the position of Figs. 3 and 5, the lever 0 will be prevented from oscillating, and, therefore, the separator will be held stationary and no tacks will be fed to the tack carrier.

When the shoe is placed in position in the machine, that is, is held against the under side of the tack carrier, its sole will be pressed up against the roll 5. on arm 3, lifting said arm from the position of Fig. v5, to the position of Fig. 6, drawing the toe 8 down below the level of the end portion 0 of the lever 0, so that the attachment is practically entirely disengaged from the machine, permitting the lever 0 to be actuated upon the advance. of the lever m and the separator to be operated. As soon as the shoe is withdrawn, thespring 6 again lifts the toe 8 in front of the arm 0 again preventing operationof the separator.

From the foregoing description it will be apparent that While the shoe is held in position, the machine will operate in the ordinary manner, the roll 5 running easily on the sole when the shoe is moved while in engagement therewith, so that the attachment does not interfere with the work of the operator, and, when. the shoe is removed, further feeding of the tacks will be immediately prevented. The arm 3 is adapted to be adjusted to various positions to meet different requirements.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a lasting machine, the combination of a main shaft, the driver, the tack holder, and tack feeding devices comprising a tack race-way and't-ack separator, said separator being movable in opposite directions to feed the tacks separately from the race-way to the tack-holder, an operating device movable back and forth to operate said separator, a spring located between said shaft and said operating-device, means operated by said shaft for compressing said spring to move said operating device in one direction, a locking device having an abutment and means for normally holding said abutment in the path of movement of said operating device to prevent movement thereof upon compression 'of said spring, and an arm connected to said locking device and disposed to be engaged by the shoe when placed in position in the machine to move said abutment out of engaging position, substantially as described.

2. In a lasting machine, the combination 'of the main shaft, the driver, the tack holder, and the tack feeding devices com prising a tack race-way, and a tack separator movable to deliver the tacks separately from the race-way to the holder, connections between said shaft and said separator for operating the separator as the shaft rotates, locking means for the separator normally acting to prevent operation thereof by the shaft, an engaging device having a horizontally and vertically adjustable arm connected thereto, adapted to be engaged by the shoe when held in position in the machine and to be moved thereby to cause the engaging device to release the separator and permit the same to be operated by the shaft, substantially as described.

3. In a machine of the class described, the combination with tack-delivering devices and means for actuating-said devices, of means controlled by the position of the work for locking the delivering devices with a tack therein ready to be delivered when the devices are unlocked.

4. In a machine of the class described, the combination with tack-delivering devices, a spring, and means, acting through said spring, for actuating said devices, of means, controlled by the position of the Work, for locking the delivering devices with a tack therein ready to be delivered when the devices are unlocked.

5. In combination, a movable work rest, a tack feed slide, and means for controlling the movement of said slide, said means having one end connected with the work rest and its other end free to be thrown into position to lock the feed slide in tack delivering position.

6. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack raceway, a tack separator, a two part lever the members of which are yieldingly connected and one of which members has operative connection with the separator to reciprocate it, a cam on the carrier to engage the other member of the lever to move the lever 1n one dlrection,

a spring to return the lever, and means arranged to be controlled by the shoe as the shoe is moved out of tack receiving position to engage the lever member which is con nected with the separator and stop the reciprocation of the separator.

7. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack raceway, a tack on the carrier to engage the other member of a,

the lever to move the lever in one direction, a spring to return the lever, a control lever having its front end in position to be lifted by the shoe and extending along the side of the machine toward said two part lever, a finger on the control lever having a toe which, when the shoe is not in contact with the control lever, stands in the path of the lever member that is connected with the separator.

8. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack raceway, a tack separator, a two part lever the members of which are yieldingly connected and one of which members has operative connection with the separator to reciprocate it, a cam on the carrier to engage the other member of the lever to move the lever in one direction, a spring to return the lever, and means arranged to be controlled by the shoe as the shoe is moved out of tack receiving position to lock the separator against return move ment after it has moved into tack delivering relation to the carrier.

9. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack raceway, a tack separator, connections from the carrier to the separator to reciprocate the separator between receiving relation to the raceway and delivering relation to thecarrier, and means controlled by the work to stop the separator in delivering relation to the carr1er.

10. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack separator, operating connections between the carrier and the separator, a shoe rest support arranged at one side of the path of the tack carrier and a shoe rest rod having a laterally bent portion carrying a shoev bottom engaging member, said rod being adjustable rotatably in its support.

11. A machine of the class described hav ing, in combination, a tack driver, a reciprocating tack carrier, a tack separator, operating connections between the carrier and the separator, a shoe rest support arranged at one side of the path of the tack carrier and a shoe rest rod extending from said support downwardly and-laterally to a point in front of the carrier and having a roll on its end portion for contact with the shoe.

12. A machine of the class described having, in combination, a tack driver, a reciprocating tack carrier, a tack separator, operating connections between the carrier and the separator, a shoe rest rod having a por- In testimony whereof, I have signed my tion extending approximately parallel with name to this specification, in the presence of the plane of the shoe bottom and at an two subscribing witnesses.

oblique angle to the vertical plane in which EDWARD J. YOUNG. the carrier reciprocates and a shoe bottom Witnesses:

engaging roll arranged to turn on said por- L. H. HARRIMAN,

tion of the rod as an axle. H. B. DAVIS.

Oopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

